Упражнение 6. Correct the mistakes if any. 1. They are discussing the problem for hours, but has not solved it yet. 2. Somebody has been playing tennis since 2 o'clock. 3. Is it still raining? No, it have stopped. 4. John has been winning the championship two times. 5. The boys have fished for 3 hours. 6. How many books have you written?

Ответ:

• 1. They have been discussing the problem for hours, but has not solved it yet.
• 2. Somebody has been playing tennis since 2 o'clock.
• 3. Is it still raining? No, it has stopped.
• 4. John has won the championship two times.
• 5. The boys have been fishing for 3 hours.
• 6. How many books have you written?